Startups.RIP

The service compiles research reports, rebuild plans, and technical specifications for more than 1,700 Y Combinator startups that have ceased operations. By presenting retrospectives and playbooks for each company, it lets users explore the underlying ideas, market lessons, and product details behind former ventures across a wide range of industries such as analytics, artificial intelligence, SaaS, fintech, and education.

Target users are founders, product teams, and researchers who want to study past startup failures to inform new projects. The platform organizes the material by batch and industry, offering searchable entries for well‑known companies like Loopt, Wufoo, Codecademy, and many others, along with brief descriptions of their original services and outcomes.

What distinguishes this resource is its focus on “dead” YC startups as a knowledge base, providing deep, curated documentation that can be used to reconstruct or iterate on the original concepts with modern tools, including AI‑assisted rebuilding.